Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 1 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/05/2023   10:43:17   (  -0.00,-127.90) (   0.79,-131.55)  415.83                80
 01/06/2023   10:27:37   (   0.00,-127.92) (  -0.21,-127.11)   93.12                80
 01/08/2023   22:31:52   (  -0.00,-127.91) (  -0.04,-128.11)   21.72                80
 01/09/2023   22:10:53   (  -0.01,-127.94) (   0.97,-123.67)  486.69                80
 01/11/2023   10:33:18   (   0.00,-128.03) (   0.26,-129.07)  118.38                80
 01/12/2023   10:17:38   (   0.01,-128.06) (  -0.75,-124.63)  390.12                80
 01/13/2023   22:40:13   (  -0.00,-128.02) (  -0.49,-130.06)  233.43                80
 01/14/2023   22:19:13   (  -0.00,-128.04) (   0.53,-125.63)  274.53                80
 01/16/2023   10:41:39   (   0.00,-128.12) (   0.64,-131.04)  331.98                80
 01/17/2023   10:26:00   (   0.01,-128.14) (  -0.37,-126.60)  175.78                80
        38
 01/15/2023   11:20:10   ( -79.28,  85.71) 01/15/2023   11:19:52  ( -79.28,  85.64)    1.46                18
 01/15/2023   12:09:26   (  79.61,-104.36) 01/15/2023   12:10:26  (  79.61,-104.29)    1.43                60